Bag-tying machine



L. D` NELSON..

A BAG TYING MACHINE.

APPLICATION FILED Nov. I0. 1920.

1,429,160., Pndsept. 12,1922.

3 SHEETS-SHEET 2.

L. D. NELSON.

BAG TYING MACHINE.

APPLICATION FILED N0v.1o.192o.

1,429,160', N Patetedsepmz, 1922.`

3 SHEETS-SHEET 3.

Patented Sept. l2, i922.

Unire' stares PATEWFl g.

- LEWIS D. manson,v or Union ciTmMroHIGANQ il Application inea November 1c, 1920.' seriaiivo.;423,205y i First, to provide an improved machine 'for tying bags, for example, cement bags, with lwire ties;

Second, to provide an improved bag tying machine which has a large capacity;

Third, to provide an improved bag tying machine which is comparatively simple and compact in structure, f

Further objects, and objects relating to structural details, will definitely appear from the detailed description to follow. y

I accomplish the objects of my invention by the devices and means described in the following specification. The invention' is clearly defined and pointed out inv the claims. f Y

A structure which is a preferred embodiment of my invention is clearly illustrated in the accompanying drawing, forming a part of this specification7 in which:

' Fig. I is a side elevation of a bag tying machine embodying the features of'- my invention, portions only of the frame being shown. v

Fig. II is a detail plan view. Y y

Fig. IIIis a detail plan view of the bag tying spindle and hooks at the end of the out-stroke of the spindle.

Fig. IV is a detail view partially in vertical section on a line corresponding yto line 4-4 of Fig. II.

Fig. V is a detailv section onl a line corresponding to line 5 5 of Fig. IV, showing details of the tying hooks.

Fig. VI is a detailv view partially in section on line corresponding to line 66 of Fig. I, showing details of the spindle 'actuating means.

Fig. VII is a detail vertical section showing details of the tie vfeeding means, the feed member being shown in one position by full lines and in another position by dotted lines. y

Fig, VIII is .a detail .plan view of the chute Villustrating the position ofv the ties therein and also prior to the removal ofthe tie spooling: wires.

In the drawing'similar reference characters refer to similar parts throughout the several views, andthe sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

Referring to the drawing, the table bed` upon which the'inachineis y mounted. The operative parts are mounted upon the frame designated generally by the numeral 2. However as the details ',of the l represents y frame form no part of this invention they are not further described herein. "l

I support the tying spindle' for vrotative and longitudinal movement. On the 'front end of this spindle are tying hooks or hooked i fingers 4l, the fingers being providedwith y superimposed disklike'por'tions at'their minor ends' through' which the 'pivot'f'is disposed, thepivot being' carried bythe head 7 on the front end'of the spindle'. Thevhooks are held'open by meansof the spring 8, which isv supported' by arranging in grooves in the opposite faces ofthe pivot, portions ofthe hooks, vas 'shown in'Figs. IV and V, the 'ends of the spring'beingextended lto engage the hooks as-shown in Fig.y V.V

'Ihe hooks are held in their` lclosed position A by means of catch which in thev structure illustrated comprises'the ,barrellike mem'! ber9 sleeved uponthehead'? of the 'spindley and provided ywith a pin l0V adapted to :engage the notches 11 in the hooks when they are brought into register, l a coiled springlQ is arranged within the catch-member'to urge it tov engaging position. The catch lmember is'provided with a lug 1.3 which engages the,

trip 14Cl on the frame onthe return stroke ofthe spindle,l thereby releasing the' catch and allowing the spring 8 to open the hooks. Adjustable hooks.

Thevspindievis returned by means f the spring actuated dr'ur'njl'connected to the rear end ofthe spindle by the'cable'li' pass-1 ing over` the' guide pulley '18. v4The ties 19 arev fed to"the'hooks one by one with the eyes 20 at hooks.

Thebags 2l to be'tie'dare placed behind: the tie'as shown in'y Fig. II by the operator,v anda forward pull on the bag'closes the'l the ends' of theV ties engagingthe stops 15v are provided for the hooks and owing tofthe'f'rotative 'movement j of the spindle twists the tie, as shown in Fig. III. The hooks are released by slipping the tie therefrom, and the spindle is retracted by the spring drum and the hooks are again positioned to receive a tie. Y

To rotate the spindle as it is moved longitudinally l provide a tubular member 21 having a spiral slot 22 therein which is engaged by the pin 23 on the spindle. The member 2l is supported in the barrel-like housing 24 mountedl on a frame, the frame being provided with cross pieces 25 for supporting the same. The housing is adapted as a lubricant receptacle.

The feed'. chute of thestructure illustrated comprises 26and' 27 spaced to provide slot-like ways forjthe ties 19, the ties being arranged therein with theireyes at the outer sides of the bars.` The chute is inclined forwardly so thatfthe ties travel along the same by gravity. The bottom, bars 26' are expanded at their forward ends and notched at 29 to receive the hooks the notches being V- shapedso that the hooksvare guided to proper positiontoreceive the-ties. The trip 14% ofthe hook catch is positioned so that the hooks are released and vopened previous to the completionof the return movement of the spindle and the spindle' rotating groove isprovided `with a longitudi-nalH portion 30 at its rear end-see Fig, VI-fso that the hooks aresupporzted with their bills in lproper position to enterthe notchesduring the final return movement-ofA the spindle;

The ties are fed' one by one, there being a feed means comprising spring stops 31 having downwardly turnedA ends 32 adapted to normally lie in the pathof the ties.4 @n the rock shaft 33 isa pair of feed members 34 adapted when the rock shaft is actuated to pass between the tie engaged with the stop membersV and the succeeding tie and to lift the stopmembers as shown by full lines in Fig. VII, thereby releasing the ties one by onejasthe feed-l member is actuatedl The rock shaft 83 is provided with an arm 35 connected by the link 36 to the lever 37 pivoted-,at 38and positioned to be engaged by the tappet 39 on the spindle on the ret-urn stroke of the spindle, thereby releasing or delivering a tie to the hooks on' each return stroke. A `coiled ,spring 40 is connected to thev lever 37.50 that onlthel forward stroke of the spindle the rock shaft is actuated to retract the feed member allowing` the ties to move down against the stop; The ties are ordinarily packaged in' spools, the spooling wire 4l being arranged through the eye thereof; The spools are arranged on the holder 42 and as the ties are required the spooling wires with the ties thereon are pulled alongginto the chute and the spooling wires cut off and withdrawn leaving the' ties in the-chute. v

My improved tie machine has a very large capacity, that is, it greatly increases the output of a workman over methods or devices heretofore employed. The bags are uniformly tied, all that is required of the workman being to see that the chute is supplied with ties, to place the bags in the position shown in Fig. 1l and pull forwardly thereon. The structure illustrated is especially designed for tying bags such as cement bags in which the top is tied and the bags afterward lilled through a valve in they bottom. My improvements may, however, be readily adapted for use in various other relations. 1 have illustrated and described my improvements in an embodiment which l have found very practical in use` 1 have not attempted to illustrate or describe certain modifications or adaptations which l contemplate, as I believe that the disclosure made will enable 'those skilled in the art to which my invention relates to embody or adapt the same as may be desired.

Having thus described my invention, what l claim as new and desire to secure by Letters Patent, is:

l. 1n a machine for tying bag ties having eyes at their ends, the combination of a spindle mounted for longitudinal and rotative movement, means for rotating said spindle as it moved longitudinally, tie engaging hoc-lts, having disk-like superimposed por-- tions their inner ends pivotally mounted on said spindle, said disk-like portions beprovided with notches registering when the hooks are closed, a catchmember sleeved upon the end of saidspindle and provided with a pin engaging said notches when they are in registering position, a spring urging said catch member to engagingposition, a trip for releasing said catch member on the return stroke of the spindle, a spring for opening said hooks, a feed chute comprising bars notched at their ends to receive the hooks when they are in their initial position so that the ties are delivered with their eyes engaging the hooks, and a feed means for delivering the ties one by one.

2. ln a machine for tying bag ties, the combination of a spindle mounted for longitudinal and? rotative movement, means for rotating said spindle as it is moved longitudinally, tie engaging hooks, pivotally mounted' on` said spindle, a spring for opening said hooks, a feed chute comprising bars down which the ties slide, said bars being inclined and notched at their ends to receive the hooks when they are in their initial position' so that the ties are delivered with their eyes engaging' the hooks, and a feed means for releasing' the ties one by one.

3; Ina machine for tying bag ties having eyes at their ends, the combination of a. spindle mounted for longitudinal and rotative movement, means for 'rotating said spindle as it is moved longitudinally, tie

llO

engaging hooks having disk-like superimvposed portions at their innerA ends pivotally mounted on said spindle, said disk-like portions-being provided With notches registering When the hooks are closed, a catch member sleeved upon the end of said spindle and provided With a pin engaging said notches When they arey in `registering position, a

spring urging saidl catch member tol engaging position, a trip for releasing said catch member o nfthe return stroke of the spindle, and a spring for opening said hooks.

4. In; a machine for tying ties the combination of a, spindle vmounted for longitudinaland rotative movement, means for rotating said spindle as it is moved longitudinally, means for retracting said spindle, tie

engaging hooks pivotally mounted on said spindle, a catch for holding said hooks in closed positions, a trip for releasing said catch member on 'the return stroke of the spindle, and a spring for opening said'hoolis.

.5. Ina machine for tying vbagties having eyes at their ends, the combination of a spined on said spindle, a spring for opening said hooks, a feed chute comprising bars notched at their ends to receive the hooks when they are in their initial position so thatthe ties are delivered With their eyes engaging the hooks, and a feed means for delivering the ties one by one. f

6. In a machine for tying bag ties having eyes at their ends, the combination of a spindle mounted for longitudinal andprotative movement, means for rotating said spindle as it is moved longitudinally comprising a cylinder through which the spindle is disposed having a spiral slot therein terminating at its rear end in a longitudinally disposed portion and a pin on said spindle engaging said slot, means for retracting said spindle, tie engaging hooks, pivotally mounted on said spindle, a spring for opening said hooks, and a feed chute 'comprising bars notched at their ends to receive the hooks when they are in their initial position so that the ties are delivered with their eyes engaging the hooks.

7. In a machine for tying bag ties having eyes at their ends, the combination of a spindle mounted for longitudinal and rotative movement, means for rotating said spindle as it is moved longitudinally, means for retracting said spindle, tie engaging hooks pivotally mounted onl said spindle, a spring actuated catch on said spindle for holding said hooks in their closed position, a trip for releasing said catch on .return stroke ofthe y spindle, a spring for opening said hooks, a f

feed chute comprising.` bars notched to receive the hooks When'they are in their ini- ,tial position so that tliefties are delivered with their eyes engaging the hooks, and.r afeed means fortheties includingsaid spin-` dle as an actuating member.

8. In a machine for tyingbag ties having eyes at their ends, the combination of a spindlemounted for longitudinal and rotative movement, mean-s for rotating said spin-4 dle as it is moved longitudinally, tie engaging hooks pivotally mountedy on said spindle, a spring actuated catchon said spindle for holding` said hoo is in their closed position, a trip for releasing said catch on return stroke yof the spindle, a" spring foropening said hooks, and a feed chute comprising bars V notched to, receive the hooks when, they vare in their initial positionso that-the ties are y delivered with theirl eyes engaging 'thehooks 9. 'In a machine for tying bag tiesthaving eyes at their ends, the combination of a spindle mounted for longitudinal and rotative movement, means for rotating said spindle as 'itis moved longitudinally, means fortretracting said spindle, tie engaging hooksy pivotally mounted on said spindle, a spring for opening said hooks, a feed chutecomprising bars down which the ties slide, said bars being inclined and notched to receive the hooks when they-are in their initial position so that theties are delivered With their eyes engaging the hooks, and means for suc-c. cessively releasing theties in` said chute` in- ,cluding said spindle as an actuating member.

l0. In a machine for tying bag ties, having eyes at their ends, the combination of a spindle mounted vfor longitudinal and rotative movement, means for 'rotating said spindle as it is moved longitudinally, tie

envaofino" hooks ivotall mounted on said IT) "5 D spindle, a spring for opening said hooks, and a feed chute comprising bars 'down vvhich the ties slide, said bars being inclined fiio and .notched to receive-the hooks 'Wh'enthey l are in their initial position so that the ties are delivered vviththeir eyes engaging lthe hooks. i

11. In a machine for tying bag'ties,-'the combination of a spindle `mounted for lonoitudinal and rotative movement, means or vrotating said spindle as it is moved 'longitudinally, tie engaging hooks pivotally mounted on said spindle, a springactuated izoy catch on said spindle for holding said hooks e in their closed position, a trip for releasing said catch on return stroke ofthe spindle,

and a spring for opening said hooks. c

l2. ln a machine for tying bag ties having eyes at their ends the combination of a f l spindle mounted for longitudinaland rotative movement, means for rotating saidl spindle as it is'moved longitudinally, means iso 15 the si op rfor retracting said spindle, tie engaging hooks pivotally mounted on said spindle,`a feed chute comprising pairs of spaced bars providing slot-like ways for the ties disposed in the chute with-their eyes at the outer sides of the bars, the front ends of the bottom bars of the chute being flared outywardly and notched to receive the hooks when they are in their initial position so that the ties are delivered with their eyes engag- 13. ln a machine for tying bag ties hav-k ing eyes at their ends, the combination of a spindle mounted for longitudinal and ro tative movement, means for rotating said spindle as it is moved longitudinally, means for retraeting said spindle, tie engaging hooks pivota-lly mounted on said spindle, a

feed chute comprising bottom bars, notched to receive the hooks when they are in their initial position so that the ties are delivered with their eyes engaging the hooks, ay stop member for the ties, a feed member mounted to swing between the tie engaged by the stop and the succeeding tie, and adapted to lift tbe stop thereby delivering the ties to said hooks one by one, and an actuating means for said feed member comprising a tappet on said spindle.

i4; ln a machine for tying bag ties having eyes at their ends,the Combination of a spindle mounted for longitudinal and rotative movement, means for rotating said spindle as it is moved longitudinally, means for retracting said spindle, tie engaging liools pi'-\fc-tfilly mounted on said spindle, a 'eed chute comprising bottom bars notched to receive the hooks when they are in their initial position so that the ties are delivered with their eyes engaging the. hooks,y a stop member foi" the ties, and av feedy member mounted to swing between the tie'engaged by the stop and the succeeding tie, and adapted to lift the stop thereby delivering the ties to said hooks one by one.l

'in witness whereof, I have hereunto set my hand and seal.

Lewis D. NiiLsoN. [1.. a] 

